Bugfix clip scalar ndarray 59053

[weikai202]

Fixes#59053.

Series.clip(lower=np.array(0)) and similar cases failed because 0-d numpy
arrays were treated as array-like objects, and the code attempted to call
len() on them, which raises TypeError: len() of unsized object.

This PR:

• detects 0-d numpy arrays and unwraps them using lib.item_from_zerodim
  so they behave like scalars;
• preserves existing behavior for true array-like inputs (1-d arrays, lists, tuples);
• adds tests ensuring that both lower and upper accept 0-d numpy arrays
  and produce the expected clipped result.

All tests for the modified functions pass on CI.